. Cunningham's Text-book of anatomy. Anatomy. 1176 THE DIGESTIVE be marked out into a number of small, slightly elevated, polygonal areas, arece gastricce, by numerous linear depressions; the mucous membrane is consequently said to be mamillated (Fig. 927, A). These little areas, which measure from 1 to 6 mm. in diameter, are beset with numerous small pits, foveolce gastricce, about "2 mm. wide, Avhich are the mouths of the gastric glands, and they are so closely placed that the amount of surface separating them is reduced (particularly in the pyloric portion, where the gland mou
. Cunningham's Text-book of anatomy. Anatomy. 1176 THE DIGESTIVE be marked out into a number of small, slightly elevated, polygonal areas, arece gastricce, by numerous linear depressions; the mucous membrane is consequently said to be mamillated (Fig. 927, A). These little areas, which measure from 1 to 6 mm. in diameter, are beset with numerous small pits, foveolce gastricce, about "2 mm. wide, Avhich are the mouths of the gastric glands, and they are so closely placed that the amount of surface separating them is reduced (particularly in the pyloric portion, where the gland mouths are widest) to a series of elevated ridges, plicae, villosce, resembling villi on section. Although the gland mouths cannot be seen with the naked eye, a very slight magnification is sufficient to show them clearly; it is also possible to see the gland tubes leading off from the bottom of each (Fig. 927, B). Minute Structure of the Mucous Coat. — In structure the mucous coat consists of an epithelial covering composed of long columnar cells, and of numerous tubular glands, glandulce gastricce, which are prolonged out- wards from this surface, and which are enclosed in a delicate connective tissue stroma, with some small lymph nodules, noduli lymphatici gastrici. The bases of the glands reach out- wards to the lamina muscularis mucosae, a layer consisting of an ex- ternal longitudinal and an internal circular layer of plain muscle fibres. Glandulae Gastricae.—These con- sist of a duct terminating in one or more secreting tubules. The duct is lined with columnar epithelial cells, similar to those which cover the sur- face of the mucous membrane. Three varieties of glands are found in dif- ferent regions of the stomach, and are named from their position— (1) Cardiac Glands. — These glands are situated close to the oeso- phageal opening. The duct ter- minates in a single long tubule, which is lined with short columnar granular cells. (2) Fundus Glands.—In these glands
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
